The oil field is located in the Nefteyugansk region of the Khanty-Mansi Autonomous Okrug (Tyumen Region). The Bolshoy and Maly Balyk rivers flow here with many tributaries. Most of the territory is covered with coniferous forest and swamps. The climate is sharply continental. In winter, the temperature reaches 50 degrees Celsius in summer it rises to +35.
The Mamontovskoye field was discovered in 1965 (development began in 1970) and it is one of the largest deposits in Western Siberia. In terms of maximum oil production, it ranks after Samotlor. During the operation, four times more oil was extracted from the subsoil than in the Variogan, Talinsky, Sutorminsky and Lyantorsky basins together.
The first trial attempts to develop the Mamontovskoye field began in the summer of 1968. Already in the first year of operation of the Mamontovsky oil field, 42 oil and 6 injection wells are operating. The indicator of the extracted "black gold" is more than 485 thousand tons per year with the injection of 149 thousand cubic meters. In the following years, the production rate continues to grow. In 1986, the maximum figure was reached, which amounted to 35 million 166 thousand tons.